Demonstrate the use of the extra-map package's in-place intersection function ( intersection$ ) in Node.js…

Demonstrate the use of the extra-map package's in-place intersection function ( intersection$ ) in Node.js…: a task in Repo2RLEnv TerminalWorld (EuniAI) (Harbor dataset). All output should go to stdout. The Maps printed by console.log will appear in Node's default Map(n) { ... } format.